Finding the Fourth Proportional to 220,272.96, 303,970.77 and 129,634.26
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Solution
The fourth proportional to 220,272.96, 303,970.77 and 129,634.26 is: 178,891.80
Step by Step Solution
- Step 1: Write the proportion equation
220,272.96 : 303,970.77 = 129,634.26 : x - Step 2: Convert to fraction form
220,272.96/303,970.77 = 129,634.26/x - Step 3: Cross multiply
220,272.96x = 303,970.77 × 129,634.26 - Step 4: Simplify right side
220,272.96x = 39,405,025,830.58 - Step 5: Solve for x
x = 39,405,025,830.58/220,272.96 - Step 6: Final answer
x = 178,891.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.